JPS5333400A - Electret - Google Patents

Electret

Info

Publication number
JPS5333400A
JPS5333400A JP10726876A JP10726876A JPS5333400A JP S5333400 A JPS5333400 A JP S5333400A JP 10726876 A JP10726876 A JP 10726876A JP 10726876 A JP10726876 A JP 10726876A JP S5333400 A JPS5333400 A JP S5333400A
Authority
JP
Japan
Prior art keywords
acoustic
electret
decrease
preventing
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10726876A
Other languages
Japanese (ja)
Inventor
Sakae Tamura
Yoshinori Fujimori
Shigeru Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP10726876A priority Critical patent/JPS5333400A/en
Publication of JPS5333400A publication Critical patent/JPS5333400A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)

Abstract

PURPOSE: To prevent a level of acoustic pressure from dropping down, by preventing a decrease of electrically acoustic conversion efficiency caused by a contact between the vibrating film and electric in an application to the electrostatic acoustic converter.
COPYRIGHT: (C)1978,JPO&Japio
JP10726876A 1976-09-09 1976-09-09 Electret Pending JPS5333400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10726876A JPS5333400A (en) 1976-09-09 1976-09-09 Electret

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10726876A JPS5333400A (en) 1976-09-09 1976-09-09 Electret

Publications (1)

Publication Number Publication Date
JPS5333400A true JPS5333400A (en) 1978-03-29

Family

ID=14454738

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10726876A Pending JPS5333400A (en) 1976-09-09 1976-09-09 Electret

Country Status (1)

Country Link
JP (1) JPS5333400A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127298A (en) * 1987-11-06 1989-05-19 Yamagata Gravure:Kk Manufacture of label

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01127298A (en) * 1987-11-06 1989-05-19 Yamagata Gravure:Kk Manufacture of label

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